What Are Suckers on Trees?
Suckers are fast-growing shoots that pop up from the base, roots, or lower trunk of a tree.
They grow straight up, look thin and leafy, and steal energy the tree needs for healthy growth.
Most of the time, tree suckers are a sign of stress or simply how a grafted tree behaves.
The good news is they are easy to spot and easy to pull once you know what to look for.
What Suckers on Trees Look Like
Suckers look like thin, upright shoots with fresh green leaves growing low on a tree. You will spot them near the soil line, around the trunk base, or popping up a few feet from the ground.
They grow fast and stand straight, which makes them stand out from the tree’s normal branches.
Suckers that rise from the ground come from the root system. These are root suckers, and they often show up far from the trunk.
The same thing can happen with leftover tree roots after a tree is removed, where the old roots still push up new shoots. Suckers that grow right at the base of the trunk are basal.
Either way, the shoots are weak and poorly attached. They rarely turn into strong, useful branches.
Suckers vs. Water Sprouts
Suckers grow from the base or roots of a tree, while water sprouts grow higher up from the trunk or branches. Both are fast, upright shoots, but their starting point sets them apart.
Here is the simple way to tell them apart:
- Suckers start low, at the base or from the roots in the soil.
- Water sprouts start high, along the trunk or on top of branches.
Both types are a tree’s response to stress or heavy pruning. Both steal energy. And both should be removed early before they grow thick and woody.
Why Trees Grow Suckers
Trees grow suckers as a stress response, a way to push out new growth when something is wrong. The tree senses damage or the loss of leaves and tries to grow back quickly from the bottom up.
Strong, happy trees rarely sucker much. Stressed trees sucker a lot.
Common triggers include:
- Root damage from digging, mowers, or construction.
- Heavy or improper pruning that removes too much of the canopy.
- Drought, heat, or poor soil that weakens the tree.
- Disease or pest damage that hurts the tree’s health.
- A graft union where the rootstock sends up its own shoots.
If a tree suddenly throws out many suckers, treat it as a warning sign. The shoots may point to a deeper problem.
It helps to check the tree for other signs of disease or decline, such as dead branches, peeling bark, or fungal growth.
Are Suckers Bad for Your Tree?
Yes, suckers are bad for a tree because they pull energy away from the main trunk and canopy. Every sucker uses water and food that the tree could send to the strong, healthy branches. A few small shoots will not hurt much. A thick cluster, left for years, can weaken the whole tree.
Suckers also cause other problems:
- They crowd the base and trap moisture, which invites pests and rot.
- They make the tree look messy and overgrown.
- On grafted trees, they can take over and replace the variety you wanted.
So while one or two suckers are not an emergency, they are worth removing before they spread.
How to Remove Suckers the Right Way
The best way to remove suckers is to cut or pull them at the exact point where they start. A clean cut at the origin stops regrowth far better than snipping the shoot halfway up. Leaving a stub only triggers more suckers.
Follow these steps:
- Find where each sucker connects to the trunk, base, or root.
- For root suckers, pull them by hand when the soil is soft, since tearing removes more of the bud than a cut.
- For basal suckers, use clean, sharp pruners and cut flush at the base.
- Do not leave stubs, which only invite new growth.
- Check the tree every few weeks and remove new shoots while they are small.
Remove suckers in late spring or summer, when the tree is growing and less likely to push out a fresh wave.
This is different from a planned crown reduction, which is a careful canopy cut rather than a quick fix for low shoots.
Suckers on Grafted Trees
Suckers on grafted trees come from the rootstock, not the variety grafted on top. This matters because rootstock suckers will not grow the fruit, flowers, or shape you bought the tree for. Many fruit trees, roses, and ornamentals are grafted this way.
Look for the graft union, a slight bump or scar low on the trunk. Any shoot below that line is a rootstock sucker. Remove these right away. If you let them grow, they can outcompete the top variety and slowly take over the tree.
Oak Tree Suckers
Oak tree suckers are upright shoots that grow from the base or roots of an oak, often after stress or damage. Oaks sucker most when their roots get cut by digging, mowers, or construction. You will see the shoots crowd the trunk base or rise from the soil over the root zone.
Remove oak tree suckers by cutting them flush at the base or pulling root shoots while the soil is soft. Do not leave stubs, since stubs trigger fresh growth. Keep the oak watered and its roots protected, and the suckers will slow down on their own.
Cherry Tree Suckers
Cherry tree suckers are fast-growing shoots that rise from the roots or base of a cherry tree, and they spread more than most trees. Many cherries are grafted, so suckers from below the graft come from the rootstock and will not grow the fruit you want. Root suckers can pop up several feet away and even start new shoots across the yard.
Remove cherry tree suckers by pulling root shoots while the soil is soft, since tearing removes more of the bud than cutting. Cut basal shoots flush at the base, and never leave stubs. Check often in spring and summer, when cherries push out suckers the fastest.
Peach Tree Suckers
Peach tree suckers are upright shoots that grow from the roots or base of a peach tree, often after pruning, cold damage, or root stress. Most peach trees are grafted, so any shoot below the graft union comes from the rootstock and will not produce the peaches you want. These suckers waste energy the tree needs for fruit.
Remove peach tree suckers by cutting them flush at the base or pulling root shoots while the soil is soft. Do not leave stubs, since stubs only trigger more growth. Check the tree often in spring and summer, when peaches push out suckers the fastest, and always clear rootstock shoots right away.
Keeping Suckers Under Control for Good
Suckers are the tree’s way of responding to stress, so the long-term fix is to keep the tree healthy with good watering, careful pruning, and protected roots.
Pull or cut new shoots while they are small, and always remove rootstock suckers on grafted trees.
If your tree keeps suckering heavily despite your care, that is a sign of a deeper issue, and a certified arborist can find the root cause and set the tree right.